Heavy Rainfall in the Southwest and Southeast This Weekend; Monitoring Tropical Cyclone Formation Which Could Impact the Southeast U.S.

Heavy rainfall from monsoon thunderstorms may bring isolated flash and urban flooding to the Desert Southwest. A near-stationary front will bring numerous showers and thunderstorms to much of the Mid-Atlantic and Southeast. Tropical wave (AL94) is likely to become a depression. Significant uncertainty remains in the track and intensity, but chances for impacts to the Southeast are increasing. Read More >

Current conditions at

Helena Regional Airport (KHLN)

Lat: 46.60445°NLon: 111.9892°WElev: 3874.0ft.

Clear

55°F

13°C

Humidity 24%
Wind Speed W 4 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 27 Sep 12:20 AM MDT
Extended Forecast for

East Helena MT

  • Overnight

    Overnight: Patchy smoke. Mostly clear, with a low around 44. Southwest wind 7 to 9 mph.

    Low: 44 °F

    Patchy Smoke

  • Saturday

    Saturday: Patchy smoke. Sunny, with a high near 78. South wind around 6 mph becoming west southwest in the morning.

    High: 78 °F

    Patchy Smoke

  • Saturday Night

    Saturday Night: Patchy smoke. Mostly clear, with a low around 44. East wind around 6 mph becoming west in the evening.

    Low: 44 °F

    Patchy Smoke

  • Sunday

    Sunday: Patchy smoke before 7am. Sunny, with a high near 81. Light and variable wind becoming east around 6 mph in the afternoon.

    High: 81 °F

    Patchy Smoke
    then Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 49. East wind around 6 mph becoming south southwest after midnight.

    Low: 49 °F

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers after noon.  Mostly sunny, with a high near 81. South southeast wind 6 to 9 mph, with gusts as high as 18 mph.

    High: 81 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: A 50 percent chance of showers, mainly before midnight.  Mostly cloudy, with a low around 49. South southwest wind 7 to 9 mph, with gusts as high as 18 mph.

    Low: 49 °F

    Chance
    Showers then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers after noon.  Partly sunny, with a high near 71. South wind 6 to 8 mph.

    High: 71 °F

    Partly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers.  Mostly cloudy, with a low around 44.

    Low: 44 °F

    Chance
    Showers

Detailed Forecast

Overnight
Patchy smoke. Mostly clear, with a low around 44. Southwest wind 7 to 9 mph.
Saturday
Patchy smoke. Sunny, with a high near 78. South wind around 6 mph becoming west southwest in the morning.
Saturday Night
Patchy smoke. Mostly clear, with a low around 44. East wind around 6 mph becoming west in the evening.
Sunday
Patchy smoke before 7am. Sunny, with a high near 81. Light and variable wind becoming east around 6 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 49. East wind around 6 mph becoming south southwest after midnight.
Monday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 81. South southeast wind 6 to 9 mph, with gusts as high as 18 mph.
Monday Night
A 50 percent chance of showers, mainly before midnight. Mostly cloudy, with a low around 49. South southwest wind 7 to 9 mph, with gusts as high as 18 mph.
Tuesday
A chance of showers after noon. Partly sunny, with a high near 71. South wind 6 to 8 mph.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 44.
Wednesday
A chance of showers, mainly after noon. Mostly sunny, with a high near 68.
Wednesday Night
A slight chance of rain. Mostly cloudy, with a low around 42.
Thursday
A slight chance of rain. Partly sunny, with a high near 65.
Thursday Night
A slight chance of rain. Mostly cloudy, with a low around 40.
Friday
A slight chance of rain. Partly sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
East Helena MT
 46.59°N 111.92°W (Elev. 3891 ft)
6:43 pm MDT Sep 26, 2025
12am MDT Sep 27, 2025-6pm MDT Oct 3, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database